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Driving system and method for dynamically adjusting gate voltage

A gate voltage and dynamic adjustment technology, applied to circuits, electrical components, electronic switches, etc., can solve problems such as inability to adjust in real time, and achieve the effects of reducing switching losses, improving efficiency, and improving reliability

Active Publication Date: 2021-01-29
RUKING EMERSON CLIMATE TECH SHANGHAI CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the shortcomings of the prior art described above, the purpose of the present invention is to provide a driving system and method for dynamically adjusting the gate voltage, which is used to solve the problem that the prior art cannot detect the gate voltage of the switching device in real time. adjustments to reduce circuit losses and improve circuit efficiency

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  • Driving system and method for dynamically adjusting gate voltage
  • Driving system and method for dynamically adjusting gate voltage
  • Driving system and method for dynamically adjusting gate voltage

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Embodiment Construction

[0033] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that, in the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0034] It should be noted that the diagrams provided in the following embodiments are only schematically illustrating the basic ideas of the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the compo...

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Abstract

The invention provides a driving system and method for dynamically adjusting gate pole voltage. The driving system for dynamically adjusting the gate pole voltage comprises a switching device module;an inter-electrode voltage detection module connected with the switching device module and used for detecting the inter-electrode voltage of a switching device in the switching device module; an interelectrode voltage analysis module connected with the interelectrode voltage detection module and used for analyzing the interelectrode voltage to generate an adjustment signal; and a voltage adjustingmodule respectively connected with the inter-electrode voltage analysis module and the switching device module, and used for dynamically adjusting the gate voltage of the switching device according to the adjusting signal. By detecting the Vce, the gate voltage can be adjusted in real time, so that the on-state loss of the switching device during normal operation is reduced.

Description

technical field [0001] The invention belongs to the technical field of drive control, and relates to a method for adjusting gate voltage, in particular to a driving system and method for dynamically adjusting gate voltage. Background technique [0002] In the prior art, current switching devices such as IGBT (Insulated Gate Bipolar Transistor, Insulated Gate Bipolar Transistor), MOS tube (Metal-Oxide-Semiconductor Field-Effect Transistor, the abbreviation of MOSFET is Metal-Oxide Semiconductor Field-Effect Transistor) The current drive technology mainly uses constant voltage as the main drive mode, which has low reliability and large loss. However, the on-resistance and on-voltage drop of these devices are different under different driving voltages. In each switching cycle, the driving circuit will generate a certain loss, which is related to the driving voltage. [0003] Therefore, how to provide a driving system and method for dynamically adjusting the gate voltage to so...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/13
CPCH03K17/136
Inventor 王成凯徐宇晅戴舒阳
Owner RUKING EMERSON CLIMATE TECH SHANGHAI CO LTD
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